Magnetic Force on Current Carrying Wire

A wire carries a current, creating a magnetic field around itself as shown. The current in the wire is:

• Directed to the right

• Directed to the left

• Equal to the magnetic field

• In the same direction as the magnetic field

Tags

NGSS.HS-PS2-5

In the figure, using the right hand rule around a solenoid, which of the below statements is correct:

• North Pole is 7 and South pole is 8

• North Pole is 8 and South Pole is 7

• There is no magnet, so no north or south

• The current is flowing in the direction from 7 to 8

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Why would a compass needle move if held near a current-carrying wire?

• A current carrying wire will cause any object to move

• A compass will point to any kind of metal

• Both the compass needle and the current carrying wire have magnetic fields

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which of the following will increase the strength of an electromagnet?

• Increase the voltage of the battery

• Decrease the voltage of the battery

• Wrap the coils around the core less times

Tags

NGSS.HS-PS2-5

Which part of the picture is the has the magnetism of the electromagnet?

• Commutator

• Battery

• Coil

Tags

NGSS.HS-PS2-5

________________ are the attractive and repulsive forces between two poles.

• Magnetic forces

• Electric forces

• Magnetic charges

• Electric charges

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the direction of the magnetic force on a current-carrying wire placed in a magnetic field?

• Parallel to the current

• Perpendicular to both the current and the magnetic field

• Parallel to the magnetic field

• Opposite to the current

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which rule is used to determine the direction of the magnetic force on a current-carrying wire?

• Right-hand rule

• Left-hand rule

• Ampere's rule

• Coulomb's rule

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

A wire carrying a current of 5 A is placed in a magnetic field of 0.2 T. What is the force on a 2 m length of the wire if the angle between the wire and the magnetic field is 90 degrees?

• 0 N

• 1 N

• 2 N

• 2.5 N

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What happens to the magnetic force on a current-carrying wire if the current is doubled?

• The force is halved

• The force remains the same

• The force is doubled

• The force is quadrupled

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5